Apparatus for heating tools electrically.



J. OERTLY 65 G. F. DUDLEY.

APPARATUS FOR HEATING TOOLS ELEOTRIGALLY.

APPLICATION FILED Ame, 1907.

974,420. Patented N0v.-1, 1910.

2 SHEETS-SHEET 1.

Fig.2.

VWTA/ESSESZ' J. OERTLY & G. F. DUDLEY. APPARATUS FOR HEATING TOOLS 'nnno'rmonu.

APPLIOATIOI FILED APLB, 180 7.

' Patented Nov. 1, 1910.

' 2 SEBETHHSBT 2- Fig.6.

\ Fig.5. )T/VES'S'ESU UNITED STATES ATENT OFFICE.

JOHN OERTLY, 01: CINCINNATI, OHIO, AND CHARLES F. DUDIIEY, OF BELLEVUE, KEN- TUCKY, ASSIGNORS TO Q A. MILLER TREEIN G MACHINE COMPANY, OF PORTLAND,

MAINE, A c'onronarron or MAINE.

'APPARATUS FOR HEATING TOOLS ELECTRICALLY.

. Specification of Application filed April 6,

To all whom it may concern;

Be it known that we, JOHN OERTLY and CHARLES' F. DUDL Y, citizens of the United States, residing at Cincinnati, in the county 5 of'Hamilt-on and State, of Ohio, and Bellevue, in the county of Campbell and State of Kentucky, respectively, have invented oer-'- tain- I-ni rovementsin A paratus' for Heating Too s Electrically, 0 which the followto ing description, in connection with the 110- compan'ying drawings, is 'a specification, like reference ciara'cters on 'the drawings indicating like parts in the several-figures. This invention relates. to apparatus for heating .tools electrically and more-particularly to a aratus-for use in connection with electricaliy heated tools in which theresistance constituting the heatin agency. is arran ed upon the interioroft e tool. I 'fl'le present invention is herein disclosed e died in an apparatus for heating treeing irons'used in finishing boots or shoes after. the making operations. The use ofelectricity'for heating atreei g iron permits results to-be secured whichit is practically im os'sible "to obtain where an iron ;is heated y a gas flame, according to thep'practice now-commonly followed in the artrr- An electrically heated iron is more 80 cleanly inn-use, than an iron heated by gas audit is also considerably safer, inthat it obviates. the necessity of employing an ex posed gasflame as a source of heat. Furthermore, the temperature ofanelectrically heated-iron ma be more accurately con-' trolled than that of a gas heated iron;

"1: wWherea gas flame is employed as aiheating means, i t-, ispracticaHy impossible to pre-..

- vent wideqjfluctuations ln the temperature to which an -.i ron is raised by the heating device, and therei?" considerable liability ofoverheatingjan iron and'of thereby injuring the-work -:.upon whichlit isused, The useot electricity ,minimizes the danger of loverhcatingsand permits the temperature of the 'iron to be controlled more conveniently and with considerably greater accuracy than? is possible inthe'use ofas.,. '-Heretofor e.. it -has en proposed to use electrically heated treeing irons'fprovided withinternally arranged resistances and v equipped vwith flexible electrical connections :leadin to the'iron. It has been found,h ow- Letters Pat nt Patented Nov. 1, 191-0; 1907. Serial No. 366,529.

shoe is considerably hampered by the electrical connections with which t iron is prov'ided- The presenceof wires a ached tc an iron not only interferes with the free manipulation of the iron, which is necessary in ironing aboot or shoe,'but is also disadvantageous in that the'wires are liable to become broken or short-circuited through continued use of the tool. The delay occasioned by the necessity of frequently repairmg or replacing irons heated in this way constitutes a serious objection to their use apart, from .the additional expense of keeping them in' order.. here an iron is provi ed with aelectrical connections secured thereto, it repr e diflicult to prevent excessive waste of electricity such as is occasioned, for example, by failing to shut 01f the supply while the iron is not in use. Such waste .18 particularly excessive where a rheostat is interposed between the iron and the source .of supply, as hasbeen proposed, to control the amount of current supplied to the iron, since such a device merely absorbs the current not. required at the iron.

. To avoid the foregoing objections, the present invention contemplates the provision of aniron that may be mechanically disconnected fromits source of electrical sup lyand may be. used for ironi a boot .or oe while such connection is br en. It is'essential, in order to meet practical requirements, that an iron used in thisway be capable of being quickly and conveniently connected with its of supply, or disconnected, therefrom, for otherwise an ex- .ce'ssive'am'ount of time will be consumed ir making 1 or breaking the connection. Th arrangement herein disclosed is accordingly such that an. iron may be quickly brought into operative relation to itssour'ce of supply or removed from contact therewith.- an

important feature at the invention, consid-" ered from this point. of view, consists in a rthe parts so that operative relation .rangi'ni I with t e source of supply is secu'redfby ably arranged terminals, the provision of ualactuationtomake or break the electrical .-c011neCtlOI1 being unnecessary. p

In the preferred form of our invention,

'eveiju-t at'tl1e.. erat6r in ironing a boot or" 'we provide a support for su'staining'an iron whi e bringing an iron into engagement-with suitseparate cont-rolling devices requiring mannot be'ing used by .the operator. The

- resistance].

- it will be unders support is equipped with terminals forv supplying electricity to the iron and the iron is provi ed with contacts having electrical connection with a heating resistance within its acting part. The arrangement is such that the contacts on the iron are in engagement with the terminals of the support while the iron is in operative position uponthe' support. While in this position, an electrical circuit is completed through the heating resistance of the iron. When the iron is moved from operative relation to its supply terminals,-the electrical circuit is broken and the iron is free from all mechanical connections, so that it may bemanipulated as freely as desired. The sup ort is preferably equipped with a holder f dr the iron constructed and arranged so that the iron may rest by gravity thereon. In the construction shown, the holder is arranged-for movement upon the sup ort from an inoperative position in which t e iron is out of engagement withthe supply terminals into an operative position in which the contacts on-the iron have engagement with said terminals and complete 'a' circuit through the heating Theholder is arranged to be freely movable upon its support, 'sothat by manipulating t e'iron superposed thereonsaid iron may be brought into operative relation-to the terminals upon the support or disengaged therefrom.-

The iron herein disclosed comprises an;

acti' g part having an internally arranged heating resistance and handles extending in apposite directions from "said actin part.

e two contacts on the iron are pre e'rablyv arranged upon the handles and in the construction shown they are mounteduponthe ends, of the handles and connected with the heating resistance byconductors passing longitudinally through the handles. While this constitutes our refer-red construction,

tood thatthe-arrangement. of the contacts may he-varied from that shown without departing from the present invention, theapparatus herein. shown being illustrative mere the invention.

y of one embodimenet of The particular con truction of support herein described comprises oppositely; ar-- ranged terminals which are adapted to;

have engagement with the contacts upon an iron arranged lengthwise between them. Th'e holde'r for the iron is arranged between said terminals and is pivotally. movable about a vertical axis from an operative po-, sition in line with 'said-terminals ntoinoperative position at an'angle .to the line of the. terminals. Stops are preferably provided to limit movement of the holder ii -both directions and the terminals upon the support and conductors" leading thereto are preferably shielded from accidental contact with the operator.

The present invention also contemplates the provision of a device for indicating when current is being supplied to the iron. The arrangement shown'comprises a: lampcarried by the support, electrical connections leading to the lamp from the heating circuit, and means. for controlling said connections in accordance with the osition of the holder upon the support. In t e operative position of the holder, the-lamp circuit is completed and the lamp brought into operation. Bythe use of an indicator of this nature, the liability of leavin .an iron in operative relation to the supp y terminals for anexcessive length of time is considerably lessened.

Other features of the invention, the 'ad-.

vantages of which will be apparent to one skilled in the 'art, will be hereinafter dw scribed and defined in the claims.

In the dra\\-'iiigs:F-igure 1 is a view in perspective of an apparatus constituting one embodiment of theinvention; Fig. 2. is a vertical sectional view on the line 2- z of Fig. 1; Fig. 3 is a horizontal sectional .ic"w on the line 3-3 of Fig. Fig. lis an fenlarged view in side elevation with parts in section of ap'ortion of the apparatus shown in Fig. 1; 5 is a vertical Secti'onaLview taken transversely through the center of the apparatus shown in Fig. 1; andFig. (i is a horizontal sectional. view on .the line. 6-6 of-Fi.5.-- Q

Bef erring-to-the drawings, 1 indicates a support which 1nay,.if.des1red be mounted in :convenient position upon the frameof a treeing machine. The support is provided with arms '2 and 4 extending in opposite di rections and provided with. upwardly projecting extremities arranged at a distance apart suitable to permita treeing iron tobe inserted lengthwise between them. Each of w the arms 2 and 4 is provided 'at its upper end with a split sleeve rovided with a clamping screw 5. A cupiaped insulating member 6 (see Fig'. 4) is clamped within each sleeve and arran%d for ,adjustment longitudinally thereof. ithineach member 6 is provided a plunger 8 arranged for horizont-a sliding movement and having-at its inner end a beveled head 10. The centralportion of the head is preferably concave, as shown in Fig. 4. The )lungers 8 are connected at .their outer en( s with'elect l'ic conductors .12 which may conveniently be arranged within the. arms. 2 and 4, said'arms being .open laterally for the greater part oft-heir. length, as will be apparent from Fig. 1, to facilitate ii ser tion and removal of the conductors. Bctween the head 10' of eachof the plunger's and the base of the surrounding cup-shaped tfgh 6 is arranged a spring 14; which ho said-plunger yicldingly toward "the center pf vthe support. Each of the-arms l 'r' rided at its upper end with a shields being. laterally open forations to reduce conduction of heat omstitutin as shown in Fig. .2 and partially covering the terminalstormedfby the plungers 8 so that accidental contact by the operator with said terminals isprevented.

Arranged centrally upon the support be; tween the two terminals isa holder comprising a vertical stem 18, arranged for pivotal movement in a vertical ,bearing formed in the support. Said 'steni i'sprovided' atits upper end with laterally projecting-extensions carrying vertically arranged orks2Q formed to receive a treeing iron, such as is hereinafter described, The extent of pivotal movement of the stem 18 'is preferably limited by lugs "22 and 24 cooperating with a stop 26 u )on the support 1. Thefork's20 are prefers 1y made of brass in order to-prevent fracture 111 case an ron be roughly dro 'iped -thereon.,

'lhe treeing' iron shown comprises an actthis class, said acting'part being-provided with a heating resistance upon its interior anld having handles leading from opposite s1 es. trated, the handles are identiacl in construction and but one will be described.

Referring to Fig. 4,30 're resents an internallythreaded neck, Irigi ly secured to the acting part 28 andiprovided with r-' the art 28. The neck :30 is provided with a cy lin'drical portion intermediate its ends which, in the operative: positionof theiron upon theholder, is embraced-by a fork 20,

said neck havin a shoulder .-31--to 'position' the iron u n t e fork. A tube 32, cone back 'bone' ofthe handle, is into the neck 30 and a conductor 34 passes through said tube .to the'heating screw resistance arranged within the acting part of the iron; Upon the tube 32 is mounted a casi 36 of wood constitutingthe exterior part 0 the handle', .The wooden casing 36 is-preferably separated fromthe neck 30' by insulation 38 in orderto minimize the coni .duction ofheat "from t va g part. of the viron'to the-handle'fi; .7

\Vithin the outer ortion of the. wooden casing 36*is arrang atubular cylinder 40 of insulating material, within which. is -se -fope'rative A in 4, r asengagement with the 'end of-' curedn contact plug 42 connected-to a conj'ductor 34" ,and pro ec't -i ng beyond the end of the handle. preferably somewhat rounded-land, 1n the osition of "the parts illustrated 'hplunger ,8, so that an electrical connection is provided .bet-weenl the heating resistance of the-"iron and the conductors 12 :carried by the support.

p 'A convenient construction for indicating 'j whenj the heatingcircuit is made or broken BJ JSuIatihgmember 44. mountlupon the and-i carrying pon- Thestem 18liscut away u In the, preferred construction illus or'outof. operation by and I y I the the holder one way or t The e'nd ofeach plug42 is" the holder. in thedotted line position shown in v1 erably mounted upon the frame of the arms 2 and 4. "Said insulating member 44 is provided with a shell 50mounted upon its interior, said shell receiving a lamp 52. A plunger 54 isflarranged for mcipmcltory movement in a horizontal bearing formed within the member 44 and intersecti vertical bearing in which is 'receiv the stem 18, said plun er be'n in electrical contact with the con uctor'4 Referrin to 'Figsl 5' and 6, the 54 isprovidje' insulating material and is held yieldingly toward the stem 18 by means ofa spring 58. in one si at such a point that when the older is turned to-move the forks 20 outof alinement with the arms 2 and. 4 the plunger 54 enters the recess formed insaid stem. The outer end of thep'lun'ge'r 54 is rovided with I held for engagement with t e central terminal of oonneded the lam The conduotorj48 is -54 'has'been rcedi into engagement with the central terminal of the lam um compl'eting the lamp circuit. the d'em 1s 'i'sturned. imp the position illustrated in Fig, 6, theplunger 54 is retracted imm' en-- gagement-with said central terminql and the amp circuit is broken.

In the use of the 1!- iron when not reoui the tram; machine :operator is su r upon the brackets 20 of the h'ol er, The heating 1% sistance'zwithin the iron may be thrown into it!!! and y upon-the support. When the iron .18 moved into the fa lhne position shown in. Fig. 1 the contacts. 42.-en gethe beveled portion of: the

og hi th n, the

'terminal .p ungers 8 and move laid plan gers laterally to'perlnit the entrance of the iron between them. The ends of the C(Ih .tacts 42, in the operative position of the iron, rest inthe concavities formed in the face of the plungersB andthe' iron is thus yieldingly retained in Y said-lposition. To

remove the iron, it is merely necessary to swing it out of engagement with the terminals upon the sup rt and lift it from If desired the iron may he left shuhofl. .The support may be within convenient reach and unfit is all,- pact and s mple in construction, it is pufwherein the-supply of electricitv' thereto is ing machine in front of the operator. t

will be observed am but non ,4 tion is required in 'tion upon the llflli placing the iron il- '4 er.

(1: at onelend with a head 56 of Since the its; m

in and reniovin (llesantl also opposite halves of the support are identical in construction, it is immate rial which end of the'iron be presented to a particular terminal. As will be' obvious, it is also immaterial which side of the iron is uppermost when it is placed upon the holder,

as electricalcontact-with the terminals upon the support maybe obtained in whatever a'xial position the iron may lie. It will also be'seen that on account of the presence of the shields 16 the iron cannot be removed from the holder in the Working position of the latter. Theshields 16,,v as will be obvious, also prevent theinsertion of an iron in the holder in the working position of the holder. It is thus necessary that the holder be in its inoperative position both in applyan iroii..

e lamp 52 llIIHSl1BS an ndicator, apparent at. some distance, of the condition of waste of electricity such as, would be occasioned by accidentally leaving the-heating circuit closed for an excessive length of time.

- Having described our invention, what we 311-. The combination with-,a treeing iron provided with a heating resistance within its acting part, and with handles extending from opposite. sides of said part, :of a sup-' I port for removably sustaininglsaid; iron by 'sition of :1 out with its handles, contapts upon sa iron electrically connected with the resistance' and terminals upon said .support .for completing a circuit throughtlie resistance'arranged to have engagement with the contacts on the iron'in the operative pot lie iron upon said support. 2. The combinatlon'with a treeing iron rovided with a heating resistance within its acting part,- a'nd'with handles extending from opposite sides of'said part, of a'support for removably sustaining said iron by engagement with its'handles, contacts ca'r-' ried y said-iron upon opposite sides of said acting. part and electrically connected with the resistance and terminals upon the sup.- port for completing a circuit through the resistance arranged to have engagement with the contactsupon the ironin the operative position of the'ironupon the-support.

,3. The combination with a treeing iron rovided with an internally arranged heating resistance, of. support, a holder for removably sustainingsa id iron arranged for movement .upon :the support from an inoperative to a working position,contacts-upon the iron electrically connected with the resistance and terminals upon said'sup ortard to have engagement with t e con-3' tac upon the iron in the working position of said holder to .complete a circu t through holder.

pair ofterminals carried by said support, 9.

'connections leading to said the resistance and to be discngugci l tlier'e from in the inoperative position oi. said holder.

4. The combination with a treeing iron provided with an internally arranged heating resistance, of a support, a holder for removably sustaining said iron in an approxi- .nia-tely horizontal position arranged for pleting acircuit through the resistance in the working position of said holder.

0. The combination with an iron provided with a heating resistance within its acting part, and with handles extending in opposite directions from said part, of a support,

-a holder formed to sustain reinovably said the apparatus. As .it attracts attention,- when it s ni operation, to the fact that the heating circuit is closed, it tends to prevent.

iron and arranged for movement upon said support from an inoperative to a working position, contacts upon said handles electrica'lly connected with the resistance and ter minals' upon the support arranged in the path of the contacts upon the handles in position to complete a circuit through the resistance in the working position of the 6. The combination with an iron provided with a heating resistance within its'acting part andwith handles extending in opposite directions from said part, of a support, a holder formed to sustain 'reinovably said iron and arranged for pivotal movement upon said support fron an inoperative .to a working position, contacts arranged upon the ends of the handles and electrically connected with the resistance and terminals upon the support arranged to have'eng'age ment with the contacts upon the handtes in the working position of said holder.

' ,7. The combination with an iron provided with a heating resistance, of a-support,- a

pair of contacts carried ,bythe iron and designed to engage said terminals, a holder for the iron pivotally movable upon said support' into and out of circuit closing posit on, a lamp carried. by said support, electrical amp and means for controlling a .circuit through said connections in accordance with-the position of the holder. I i 8. The combination with an iron having a handles extending in opposite directions from said part and contacts arranged upon the ends of theghandles, and electrically con- 'nected with the-resistance, of a su port having oppositely arranged terinina s ,adapted to receive the iron lengthwise between them, and a holder pivotally sustained u o the sup ort between said terminals-an :in its heating resistance within itsacting part,

iron with. its

contacts in engagement .with

9. A treeing-iron having an actingpa'rt provided upon its interior with a heating resistance, two handles extending in opposite directions from said turn contacts arrange part, supply and rer spectively, in an exposed position uponthe two handles and resistance, of a support, a holder for re1 nov-.

- with'the contacts upon the iron in the workworking position.

electrical connections leading from-said con- 10 tacts to the resistance.-

10. The combination with an iron provided with an internally. arranged heating ably sustaining said iron constructed for movement upon the'support from. an inop-' erative to a Working position and arranged to receive th e ironm-said inoperative position, contacts upon the iron electrically connected with the resi'stance;-termi-nals upon said-support arranged to have engagement ing position of the holder and to be' disengaged therefrom in the inoperative position of said holder,-and means forpreventing'removal of the iron from the holder in its 11.;The combination With an iron provided with an internally arranged heating resistance, of a support, a holder for removably sustaining said iron constructed for movement upon the support from an inop-.

*erativeto a working position and arranged tofreceive the iron 1n said inoperative position, contacts upon the iron electrically connected with the resistance, terminals upon said support arranged to have en gement with the contacts upon the iron in t a working 'position of the holder and to be disengaged therefrom in the inoperative position of said holder, and means for preventing inser-ti'on of the iron in the holder in the working position of said holder.

12. The combination with the terminals of an electric supply system of a treeing iron adapted to be heated'by an electric current, a pair of contacts carried by said iron, the distance between the outer faces of which is greater than the normal distance between the terminals, and yielding means for pressing said contacts. and terminals together during the heating operation. I

13. The combination of a treeing iron adapted'to be heated by an electric current, rigid contacts upon said iron, and yielding terminals arranged to permit the contacts to be forced bet-ween them.

said resistance through said contacts with said terminals and into another position to free said resistance from all connection with said supply system."

In testimony whereof we have names to this specification in the presence of two subscribing Witnesses.

JOHN OERTLY.

7 CHARLES DUDLEY.

\Vi tness'es:

LUISE BECK, LEO ODoNN1iLL.

signed our 

